- #1

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## Homework Statement

http://img16.imageshack.us/img16/6606/50381320.jpg [Broken]

## Homework Equations

Please see above picture

## The Attempt at a Solution

I believe for question a) I just need to add up all the matrices and then row reduce to RREF, which gives me:

[1,0,0]

[0,1,0]

or Do I row reduce each matrices?

I'm really not sure how to do b), any tips would be great!

Thanks

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